Some issues in heat transfer of wet_steam cooling of gas turbines

Energetics. Electrical engineering

The interest in steam cooling makes it urgent to consider the specific features of heat exchange of water
vapor and humidified air, previously performed in connection with the cooling tasks of gas turbines.
Regarding the task of using wet and saturated steam to cool the gas turbine blade system, possible cooling
modes are considered for motion of humidified flows in flat channels. Based on the analysis of the
experimental data, possible physical models of heat and mass transfer processes are proposed. We have
discussed the conditions under which the maximum values of heat transfer can be obtained, in particular,
for GTUs operating autonomously, where there is no steam generation in the thermal scheme, and the
possibility of using air with dispersed moisture as a cooling agent instead of wet steam.